EN/
0915/WLA Compact
/8
Area
Danger
Risk
Preventive measures
Close to the unit
With unit ON: leaks in the
refrigerant circuit; defective
safety valve or high
pressure switch; fire; shut-
off valves in the refrigerant
circuit closed after
maintenance intervention;
defect in the gas charge
line. Consequent explosive
breakage of the refrigerant
circuit.
Burns, formation of
acid vapours in the
presence of flames.
For installation inside buildings: convey
the safety valve discharge towards
specific outdoor areas.
Open the shut-off valves of the
refrigerant circuit. Wear PPE. In case of
fire, wear fire-fighting masks.
Close to the unit
(electrical panel,
power supply
cables)
Short-circuit; incorrect
sizing of the cables or main
switch.
Electrocution, fire,
formation of acid
vapours.
Check the fixing of the terminal cables;
select the power supply cables and
main switch. Wear PPE. In case of fire,
wear fire-fighting masks.
Close to the unit
Noise emission.
Injury of the hearing
system.
Wear PPE.
During maintenance
Area
Danger
Risk
Preventive measures
Close to the unit
Leaks in the refrigerant
circuit; defective safety
valve and high pressure
switch; fire; defect on
the gas charge line.
Consequent explosive
breakage of the refrigerant
circuit.
Burns, formation of
acid vapours in the
presence of flames.
Wear PPE. In case of fire, wear fire-fighting
masks.
Unit components:
compressor,
compressor
delivery pipes,
condenser.
Contact with hot surfaces.
Burns.
Avoid contact Wear PPE.
Condenser
Contact with sharp
surfaces (fins)
Cuts, bruises.
Wear PPE.
Electrical panel
Live power supply line even
if the switch on board the
unit is OFF.
Electrocution.
Make sure to disconnect the power supply
from the distribution panel. Make sure that
the main switch is not reactivated during
maintenance.
During dismantling operations
Area
Danger
Risk
Preventive measures
Close to the unit
Leaks in the refrigerant
circuit; defective
refrigerant recovery
system. Consequent
explosive breakage of the
refrigerant circuit.
Burns, formation of
acid vapours in the
presence of flames.
Wear PPE.
Close to the unit
Oil leaks during recovery.
Contact between
skin or eyes and oil
Wear PPE.
